ARTICLE 18
Pensions
(1) Subject to the provisions of paragraph 2 of Article 19 pensions and other similar remuneration paid to a resident of a Contracting State in consideration of past employment shall be taxed only in that Contracting State.
(2) Notwithstanding the provisions of paragraph 1 pensions paid and other payments made under public schemes, which are part of the social security system of a Contracting State, shall be taxable only in that Contracting State.